21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)...

Was nützen die besten Wirkstoffe, wenn sie nicht dort landen, wo sie hin sollen? Forschern scheint jetzt der Durchbruch gelungen zu sein. Molekulare Spritzen tragen punktgenau den Wirkstoff in die gewünschte Zelle. Der von Bakterien abgekupferte Trick könnte die Krebstherapie revolutionieren.

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Imagine a future in which robots, smaller than the tip of a hair, are deployed inside the human body to perform micro-surgeries. As far fetched as it may seemed, it's not entirely implausible anymore.

Itai Cohen, Professor of Physics at Cornell University, says the crucial breakthrough was the invention of 'legs' that allow the microscopic robots to move, guided by electrical signals sent by humans. Now, it's just a matter of time before the technology is perfected.

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New conductive MXene nanocoating may unlock biometric and wearable technology of the future

(Nanowerk News) A team of researchers from the College of Engineering at Texas A&M University have developed a mechanically robust conductive coating that can maintain performance under heavy stretching and bending.

Stretchable, bendable and foldable electronics are crucial for the development of emerging technologies like adaptive displays, artificial skin, and biometric and wearable devices. This presents a unique challenge of balancing electronic performance and mechanical flexibility. The difficulty lies in finding a material that can withstand a wide array of deformations, like stretching, bending and twisting, all while maintaining electrical conductivity.

Adding to the challenge is the need for this conductivity to be engineered into a variety of different surfaces, such as cloth, fiber, glass or plastic.

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Einem internationalen Forscherteam mit Beteiligung des Max-Planck-Instituts für Polymerforschung ist es gelungen, Nanotransistoren aus nur wenigen Atomen breiten Graphenbändern zu produzieren.

Forschung für die Nanotechnologie der Zukunft: Nur wenige Atome breite Graphenbänder, sogenannte Graphen-Nanoribbons, haben spezielle elektrische Eigenschaften, die sie zu viel versprechenden Kandidaten für die Nanoelektronik der Zukunft machen: Während Graphen – eine nur ein Atom dünne, bienenwabenförmige Kohlenstoffschicht – ein leitendes Material ist, kann es in Form von Nanobändern zum Halbleiter werden.

Das bedeutet, es hat eine genügend große Energie- oder Bandlücke, in der keine elektronischen Zustände möglich sind: Dadurch lässt es sich an- und abschalten – und wird so möglicherweise zu einem zentralen Bestandteil von Nanotransistoren.

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Researchers have created a high-tech yarn which produces enough power for LED lighting -- and potentially far more.

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Nanoscale, biodegradable drug-delivery method could provide a year or more of steady doses.

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In the future, getting customized cancer treatments might just be a matter of injecting virtually invisible discs into into your body.

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Kanadischen Wissenschaftlern der University of Montreal und der McGill University ist es gelungen, magnetische Bakterien (sogenannte Nanobots) als Transportmittel für Medikamente einzusetzen.

Die medikamentöse Behandlung von Tumoren gestaltet sich bis heute schwierig. Die verabreichten Mittel lassen sich selten in unmittelbaren Kontakt mit den bösartigen Krebszellen bringen. Die Wirkung auf die erkrankten Bereiche fällt deshalb oft wenig effektiv aus. Mithilfe der magnetischen Bakterien können schwer erreichbare Krebszellen gezielt behandelt werden und gleichzeitig bleiben gesunde Körperregionen verschont.

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Traditional 3D printing has limits that have negatively impacted its usefulness. For one, almost all 3D printers use plastic as the medium, and that plastic needs to be supported during the printing process. An experimental printer developed by Harvard’s Wyss Institute and the School of Engineering and Applied Sciences (SEAS) uses nanoparticles and lasers to make metallic 3D printing feasible in midair.

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Stellt euch vor, es gibt eine Methode, mit der man alle Allergien – sei es gegen Pollen, Nüssen oder Heuschnupfen – bekämpfen kann.

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University of California, Irvine researchers recently invented nanowire-based battery material that can be recharged not hundreds of times but hundreds of thousands of times. Dare we say it? These batteries might last practically forever.

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Researchers develop miniature lens for trapping single atoms
(Nanowerk News) Atoms are notoriously difficult to control. They zigzag like fireflies, tunnel out of the strongest containers and jitter even at temperatures near absolute zero.

Nonetheless, scientists need to trap and manipulate single atoms in order for quantum devices, such as atomic clocks or quantum computers, to operate properly. If individual atoms can be corralled and controlled in large arrays, they can serve as quantum bits, or qubits — tiny discrete units of information whose state or orientation may eventually be used to carry out calculations at speeds far greater than the fastest supercomputer.

Researchers at the National Institute of Standards and Technology (NIST), together with collaborators from JILA — a joint institute of the University of Colorado and NIST in Boulder — have for the first time demonstrated that they can trap single atoms using a novel miniaturized version of “optical tweezers” — a system that grabs atoms using a laser beam as chopsticks.

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(Nanowerk News) After years of tackling numerous design and manufacturing challenges, MIT researchers have built a modern microprocessor from carbon nanotube transistors, which are widely seen as a faster, greener alternative to their traditional silicon counterparts.

The microprocessor, described in the journal Nature ("Modern microprocessor built from complementary carbon nanotube transistors"), can be built using traditional silicon-chip fabrication processes, representing a major step toward making carbon nanotube microprocessors more practical.

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A scientific team led by the Department of Energy's Oak Ridge National Laboratory has found a new way to take the local temperature of a material from an area about a billionth of a meter wide.

This discovery, published in Physical Review Letters ("Temperature Measurement by a Nanoscale Electron Probe Using Energy Gain and Loss Spectroscopy"), promises to improve the understanding of useful yet unusual physical and chemical behaviors that arise in materials and structures at the nanoscale.

The ability to take nanoscale temperatures could help advance microelectronic devices, semiconducting materials and other technologies, whose development depends on mapping the atomic-scale vibrations due to heat.

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Converting CO2 into usable energy with graphene nanosheets
(Nanowerk News) Imagine if carbon dioxide (CO2) could easily be converted into usable energy. Every time you breathe or drive a motor vehicle, you would produce a key ingredient for generating fuels. Like photosynthesis in plants, we could turn CO2 into molecules that are essential for day-to-day life. Now, scientists are one step closer.

Researchers at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory are part of a scientific collaboration that has identified a new electrocatalyst that efficiently converts CO2 to carbon monoxide (CO), a highly energetic molecule.

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Lawrence Livermore scientists, in collaboration with researchers at Northeastern University, have developed carbon nanotube pores that can exclude salt from seawater. The team also found that water permeability in carbon nanotubes (CNTs) with diameters smaller than a nanometer (0.8 nm) exceeds that of wider carbon nanotubes by an order of magnitude.

The nanotubes, hollow structures made of carbon atoms in a unique arrangement, are more than 50,000 times thinner than a human hair. The super smooth inner surface of the nanotube is responsible for their remarkably high water permeability, while the tiny pore size blocks larger salt ions.

Increasing demands for fresh water pose a global threat to sustainable development, resulting in water scarcity for 4 billion people. Current water purification technologies can benefit from the development of membranes with specialized pores that mimic highly efficient and water selective biological proteins.

"We found that carbon nanotubes with diameters smaller than a nanometer bear a key structural feature that enables enhanced transport. The narrow hydrophobic channel forces water to translocate in a single-file arrangement, a phenomenon similar to that found in the most efficient biological water transporters," said Ramya Tunuguntla, an LLNL postdoctoral researcher and co-author of the manuscript appearing in the Aug. 24 edition of Science.

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Dieser Chip kann im Körper eines Menschen neue Zellen entstehen lassen. Das könnte in Zukunft ganz neue Behandlungsmethoden möglich machen.

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For this metal, electricity flows, but not the heat

(Nanowerk News) There's a known rule-breaker among materials, and a new discovery by an international team of scientists adds more evidence to back up the metal's nonconformist reputation. According to a new study led by scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and at the University of California, Berkeley, electrons in vanadium dioxide can conduct electricity without conducting heat.

The findings, to be published in the Jan. 27 issue of the journal Science ("Anomalously low electronic thermal conductivity in metallic vanadium dioxide"), could lead to a wide range of applications, such as thermoelectric systems that convert waste heat from engines and appliances into electricity.

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It looks like a piece of Nerf or coral, but it's actually one of the strongest materials ever created.

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First quantum photonic circuit with an electrically driven light source...

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Rendre plus solide un matériau composite avancé sans l'alourdir : les ingénieurs aéronautiques peuvent en rêver. Des physiciens du MIT l'ont fait, en ajoutant des nanotubes de carbone, capable...

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Thank You for watching, Please like and subscribe for more videos. Ultra Ever dry Spray-on clothing Liquipel...

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Li-on batteries gradually deteriorate as they’re repeatedly drained and recharged. But now researchers from University of California, Irvine have developed a new nano-wire battery that can survive hundreds of thousands of charging cycles.

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